Laihao Ding

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20232026

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Showing 2024 · math.COShow all

2 papers · 2 filters

math.CO2024

Induced even cycles in locally sparse graphs

Laihao Ding, Jun Gao, Hong Liu +2

A graph $G$ is $(c, t)$ -sparse if for every pair of vertex subsets $A, B \subset V (G)$ with $∣ A ∣, ∣ B ∣ \geq t$ , $e (A, B) \leq (1 - c) ∣ A ∣∣ B ∣$ . In this paper we prove that for every $c > 0$ and…

math.CO2024

On $3$ -graphs with vanishing codegree Turán density

Laihao Ding, Ander Lamaison, Hong Liu +2

For a $k$ -uniform hypergraph (or simply $k$ -graph) $F$ , the codegree Turán density $π_{co} (F)$ is the supremum over all $α$ such that there exist arbitrarily large $n$ -ver…

Induced even cycles in locally sparse graphs

On 3-graphs with vanishing codegree Turán density

On $3$ -graphs with vanishing codegree Turán density